Tube-soldering apparatus



March 31. 1925 H. w. BUNDY TUBE soLDERING APPARATUS Fied July 28, f1924 Patented Mar. 3l, 1925.

HARRY W. BUNDY,- or DETROIT, MICHIGAN.

TUBE-SOLDERING- APPARATUS.

App1ication filed July 28, 19424. Serial No. 728,578. v

To au whom t may concern: j

Be it known that I, HARRY W. BUNDY, a citizen of the United States, residing at Detroit, in -the county of Wayne and State of Michigan, have invented certain new and useful Improvements. in Tube-Soldering Apparatus, of which the following is a specification.

This invention relates to a machine for soldering tube and has for its object means whereby the tube maybe passed through a regulatable bath of melted solder. Vith this apparatus itis possible to i'low a measured stream of melted solder onto and around the tube so that there is a minimum of waste. r

In the drawings:

Fig. l is a side elevation showing my comd plete tube machine diagrammatically, together with my improved mechanism for soldering the tube.

Fig. 2 is an enlarged sectional view through the soldering mechanism showing the regulatable means for controlling the stream of solder. ,s t

Fig. 3 1s a cross section through a lockseam tube coated with solder.

Fig. 4f is a cross section through a buttseam tube coated with solder. The machine is of standard construction and comprises suitable mechanism for taking a strip of stock a, passing the same through luxing bath b and then through `the form ng rolls c which form the strip stock into a tube .'I. It is immaterial as far as this application is -concerned whether this tube be a lock-seam tube, a plural ply tube, or a butt-seam tube, asthe construcv tion of the tube has nothing to 'do 4with the subject matter of this invention.

The formed tube is then caused to pass through a conduit d carried by the tank e. The tank= e is arranged to store a large Y quantity of melted .solder f which is kept in a molten condition by means of the burner g. At one end of the tubular conduit I provide an inletopening k, and a needle valve. i controls the amount of solder that is allowed to pass through the opening.

The tube is continuously moving through the conduit d and a stream of melted solder is continuously iiowing through the inlet opening onto and around the tube. It will bev seen from the drawings that the conduit has an inside diameter a little greater than the outside diameter of the tube, and

the flow of solder into the conduit is regulated as nearly as possible so that all of the solder is used in covering the tube, and as little'as possible is wasted. A drip pan is located adjacent the tank for catching any surplus solder that may flow out ot the end of the conduit. j

The soldered tube is now passed through the stripping and sizing dies m and then through the water cooling apparatus n. This water cooling apparatus may be ot any standard construction and I have here shown a water tank 0, a suction pump y? for forcing the Water through the conduit y into the cooling apparatus n. The water then returns to the tank through the overflow pipe 1".

What I claim is:

1. Injan apparatus for soldering tube, the combination of means for longitudinally moving the tube, and means for flowing a stream of moltensolder onto and around the tube while so traveling, and means for regulatingsaid flow.

2. In an apparatus for soldering tube, the combination of a tank for storing melted solder, means for longitudinally moving the tube adjacent the tank, and means for flow-` moving the tube, a tank for storing melted solder, and a conduit through which the tube moves provided with an inlet opening in communication with the tank to allow a stream of solder to flow from the tank into the conduit and around the tube to coat the same with solder while the tube is 1nov. ing through said conduit.

5. In an apparatus for soldering tube, the combination of `means for longitudinally moving the tube, a tankffor storing melted solder, a conduit through which the tube moves provided with an intake opening in \communication with the tank to allow a streamLof melted solder to flow onto and around the tube While the same is moving through said conduit, and

said ow.

latin 6. n an apparatus for soldering combination of means for lon the tube, a. tank for storm through t e mass 5 moving solder, a. conduit passing of melted solder and provi means for regutube, the tudinally melted ded vvith 'an inlet alloiv a' stream of meltedisolder opening to and around the tube, and

to ow onto l means for regulatingsaid streal of melted 10 solder. v 4 1. In testimony whereof 'I have aflixed my 

